| Date Note | Specimens given to Enniskillen in 1840 by Lady Gordon-Cumming, general publication dates |
| Description | Watercolour study of a jaw, and tooth detail, of the fossil fish Osteolepis major Agassiz, by Joseph Dinkel, [1840-1844]. Found in the Old Red Sandstone, Lethen Bar, from the collection of William Willoughby Cole, 3rd Earl of Enniskillen. |